Temporal Evolution of Seabed Scour Induced by Darrieus-Type Tidal Current Turbine

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    The temporal evolution of seabed scour was investigated to prevent damage around a monopile foundation for Darrieus-type tidal current turbine. Temporal scour depths and profiles at various turbine radius and tip clearances were studied by using the experimental measurements.
    Experiments were carried out in a purpose-built recirculating water flume associated with 3D printed turbines. The scour hole was developed rapidly in the initial process and grew gradually. The ultimate equilibrium of scour hole was reached after 180 min. The scour speed increased with the existence of a rotating turbine on top of the monopile. The findings suggested that monopile
    foundation and the rotating turbine are two significant considerations for the temporal evolution of scour. The scour depth is inversely correlated to the tip-bed clearance between the turbine and seabed. Empirical equations were proposed to predict the temporal scour depth around turbine.
    These equations were in good agreement with the experimental data.

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    • Temporal Evolution of Seabed Scour Induced by Darrieus-Type Tidal Current Turbine

      Rights statement: Copyright 2019 the authors. This is an open access article published under a Creative Commons Attribution License (https://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution and reproduction in any medium, provided the author and source are cited.

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    DOI

    Original languageEnglish
    Article numberwater-481715
    Number of pages22
    Pages (from-to)1
    JournalWater
    Journal publication date28 Apr 2019
    Volume11
    DOIs
    Publication statusPublished - 28 Apr 2019

      Research areas

    • seabed scour; tidal current turbine; ocean renewable energy

    ID: 168407342